Bernie Sanders, fresh from his endorsement of Hillary Clinton, sent a message to Donald Trump Monday night that was widely interpreted as a sign that the Vermont senator had finally come into the Clinton fold. Never tweet. https://t.co/DKvAhbDWqe — Bernie Sanders (@BernieSanders) July 26, 2016 "Never Tweet," Sanders wrote directly to Trump, who had been taunting the septuagenarian senator all week, calling him "tired" and "pathetic" for capitulating to the presumptive Democratic nominee Clinton. The tweet came in response to a Trump missive 10 minutes earlier that said, "Bernie Sanders totally sold out to Crooked Hillary Clinton." Bernie Sanders totally sold out to Crooked Hillary Clinton. All of that work, energy and money, and nothing to show for it! Waste of time. — Donald J. Trump (@realDonaldTrump) July 26, 2016 Trump had tweeted earlier that it was "sad to watch Bernie Sanders abandon his revolution," that the senator looked "exhausted and done," and that he had "lost his energy and his strength." Sad to watch Bernie Sanders abandon his revolution. We welcome all voters who want to fix our rigged system and bring back our jobs. — Donald J. Trump (@realDonaldTrump) July 26, 2016 Hard to believe that Bernie Sanders has done such a complete fold. He got NOTHING for all of the time, energy and money. The V.P. a joke! — Donald J. Trump (@realDonaldTrump) July 25, 2016 Crooked Hillary Clinton knew everything that her "servant" was doing at the DNC - they just got caught, that's all! They laughed at Bernie. — Donald J. Trump (@realDonaldTrump) July 25, 2016 Crooked Hillary Clinton knew everything that her "servant" was doing at the DNC - they just got caught, that's all! They laughed at Bernie. — Donald J. Trump (@realDonaldTrump) July 25, 2016 Even though Bernie Sanders has lost his energy and his strength, I don't believe that his supporters will let Crooked Hillary off the hook! — Donald J. Trump (@realDonaldTrump) July 24, 2016 Sorry folks, but Bernie Sanders is exhausted, just can't go on any longer. He is trying to dismiss the new e-mails and DNC disrespect. SAD! — Donald J. Trump (@realDonaldTrump) July 24, 2016 Bernie Sanders started off strong, but with the selection of Kaine for V.P., is ending really weak. So much for a movement! TOTAL DISRESPECT — Donald J. Trump (@realDonaldTrump) July 24, 2016 The Wikileaks e-mail release today was so bad to Sanders that it will make it impossible for him to support her, unless he is a fraud! — Donald J. Trump (@realDonaldTrump) July 23, 2016 Sanders response echoed a tweet from Clinton to Trump in June — the most widely distributed of her campaign — that said simply, "Delete your account." Delete your account. https://t.co/Oa92sncRQY — Hillary Clinton (@HillaryClinton) June 9, 2016 Both Clinton and Sanders were appropriating Twitter burns popular with much of the younger generation, that basically mean your posts are so lame, you should just give up. By jumping in on the Trump Twitter zinger fest, Sanders positioned himself alongside Massachusetts Sen. Elizabeth Warren, the attack dog of the campaign, who followed Clinton's June tweet with one of her own that said, "No, seriously — delete your account." No, seriously -- Delete your account. https://t.co/O1u7oc0jAR — Elizabeth Warren (@elizabethforma) June 10, 2016 "This, more than that speech, shows me that Bernie is finally on board," a Reddit user posted under the name blueshirt21. Comment from discussion Bernie Sanders to Donald Trump on Twitter: "Never Tweet...". Other posters on the popular online forum agreed. "This is definitely the natural follow-up to Delete your account," a user with the id birlik54 responded. "He's on our side now." Comment from discussion Bernie Sanders to Donald Trump on Twitter: "Never Tweet...". Get breaking news alerts and more from Roll Call on your iPhone or your Android.